The "DA Star" series opens a new chapter in PENTAX lens history. The critical capability characteristics include an extremely fast "Supersonic Motor" incorporating ultrasonic technology and a housing that is completely sealed against water and dust. The smc-DA* 16-50 mm is the ultimate standard zoom. The continuous f/2.8 aperture provides for the necessary reserves needed in poor light conditions. And for optimal operational convenience the "Quick Shift Focus System" is again provided, enabling the user to instantly take manual control of the focusing. Rounding out the intelligent design of the new the Star series lens is the proprietary PENTAX SP coating that reliably protects the lens against pollution.
